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Well, I've changed both wires for 22 AWG and the results are the same... After 3-5 min. the tray refuses to close (if I close it by hand it opens again by pressing "eject"). Now, with the console opened, I can see the red light inside the DVD unit flashing every 2 "eject" presses which is normal, is trying to read the disc at the supposed "tray closed" state...
I even turned over the fan so the cold air go instide the console, but it's the same...
Could it be a defective chip?
Ah! The only thing out of diagram is that the 3rd pin (where the 3.3V is connected) is touching the 4th pin... But I thought it isn't important, since the 4 pins seems to be connected between them...
Any other ideas what could be causing this behaviour?
Since your suspecting heat. Why don't you try running it with the cover off.. Quick way to tell if it's that or not. It should run a lot cooler without the cover....
Ok.. How is the unit turned off and the unit's tray closed?
Now I'm sure it's a heat related problem... I leave the (turned off) unit with the tray open for an hour... and it closed!
If the power switch is turned off.. There should be no activity from the tray... It's as if you have it unplugged and the tray closes.. Can't happen.. The only exception is a faulty switch...
Do you mean you have it in standby mode?
Re: Loco –
That issue happens to the chips or consoles? I've other XO-2 to try.
In fact, my next move will be to change 3.3V point, I soldered where the diagram showed, but I've changed the wires so many times that it got bridged with the 4th pin; to my aknowledge that shouldn't make a problem since multimeter detected connectivity between them before... But also it's true that the tray doesn't seem to act like that when it was properly attached.
I'll try Magic2's 3.3V point, and if it doesn't changes anything, I'll put the other chip as a last resort...
Nothing should be bridged in the way Loco describes. Nothing.